Biology College

What happens to the total blood flow during heavy exercise compared to at rest?

Answers

Answer 1
Blood flow is greater when you exercise because the blood vessels in your muscles dilate. Imagine water flowing through a fire hose compared to a garden hose. Adenosine triphosphate, or ATP, is the way your body uses biochemicals to store and use energy. When ATP gets used up in working muscles, the muscles themselves produce metabolic byproducts (for example, adenosine, hydrogen ions and carbon dioxide). As these byproducts leave the muscle cells, they cause small, thin-walled blood vessels (capillaries) within the muscle to expand or dilate, which is called vasodilation. The dilated capillaries allow increased blood flow, which delivers more oxygenated blood to the working muscle.

Related Questions

Describe the anatomy of the typical long bone

Answers

Answer: HERE'S YOUR ANSWER!!!

Explanation:

Long bones are those that are longer than they are wide. The end of the long bone is the epiphysis and the shaft is the diaphysis. When human finishes growing these parts fuse together. The outside of the flat bone consists of a layer of connective tissue called the periosteum

what is malcoms prediction for hammonds island in jurassic park

Answers

Answer:

I quote: "Life cannot be contained. Life breaks free. Life... finds a way"

Explanation:

Which is true about the DNA Molecule?

A.
It is made of many small parts that are separated by proteins.

B.
It is used as a way to defend against intense radiation.

C.
It is an incredibly long molecule with thousands of genes.

Answers

C. It is an incredibly long molecule with thousands of genes.

Why do you think in the table below, Adenine and Thymine have almost the same number – but not exactly?

Nucleotide

# found in genome

Adenine

701,234,142

Guanine

803,127,160

Cytosine

803,127,162

Thymine

701,234,146

Answers

Adenine pairs with thymine and Guanine pairs with cytosine. The numbers are not exactly the same because of the mutations that happen in DNA. Some of the DNA could be broken off or put somewhere else in the gene that would throw everything off, nothing is perfect. However in a perfect world, both adenine and thymine would have the same numbers.

Scientists study salamanders and their ability to regenerate lost legs and tails. What additional information is essential for scientists to understand in order to apply this ability to humans who have lost limbs?

how quickly the body parts regenerate
how similar salamanders are to humans
which body parts are most often lost
which genes control regeneration

Answers

Answer:

The answer could be:

(/) which genes control regeneration

(/) how similar salamanders are to humans

(x) how quickly the body parts regenerate  (salamanders' size and form does not equate to human beings)

(x) which body parts are most often lost  (it was already given that it's legs and limbs)

Answer:

d

Explanation:

Cause i am the smartest

Where does the H+ come from that makes ATP synthase work?
Electron Transport Chain
Krebs cycle
Glycolysis

Answers

Electron transport chain
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